package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

//套餐管理
@RestController
@RequestMapping("/setmeal")
@Slf4j
@Api(tags = "套餐相关接口")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private SetmealDishService setmealDishService;

    //新增套餐
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)  //清理setmealCache分类下面所有的缓存数据
    @ApiOperation(value = "新增套餐接口")
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("套餐信息：{}",setmealDto);

        setmealService.savaWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    //套餐分页查询
    @GetMapping("/page")
    @ApiOperation(value = "套餐分页查询接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "page",value = "页码",required = true),
            @ApiImplicitParam(name = "pageSize",value = "每页记录数",required = true),
            @ApiImplicitParam(name = "name",value = "套餐名称",required = false)
    })
    public R<Page> page(int page,int pageSize,String name){
        //分页构造器对象
        Page<Setmeal> pageInfo=new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage=new Page<>();

        //构造 条件构造器
        LambdaQueryWrapper<Setmeal> queryWrapper=new LambdaQueryWrapper<>();
        //添加查询条件，根据name进行like模糊查询
        queryWrapper.like(name!=null,Setmeal::getName,name);
        //添加排序条件
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records=pageInfo.getRecords();

        List<SetmealDto> list= records.stream().map((item)->{
            SetmealDto setmealDto=new SetmealDto();
            //对象拷贝
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category!=null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    //删除套餐
    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)  //清理setmealCache分类下面所有的缓存数据
    @ApiOperation(value = "套餐删除接口")
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids:{}",ids);

        setmealService.removeWithDish(ids);
        return R.success("套餐删除成功");
    }

    //根据条件查询套餐数据
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId+'_'+#setmeal.status")
    @ApiOperation(value = "套餐条件查询接口")
    public R<List<Setmeal>> list(Setmeal setmeal){

        LambdaQueryWrapper<Setmeal> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);

        return R.success(list);
    }

    //套餐 启售 或 停售
    @PostMapping("/status/{state}")
    public R<String> status(@PathVariable Integer state,@RequestParam List<Long> ids){
        log.info("要操作的套餐ids:{}",ids);

        List<Setmeal> setmeals = setmealService.listByIds(ids);

        for (Setmeal setmeal : setmeals) {
            if (setmeal.getStatus() == state){
                return R.error("状态修改失败");
            }
        }

        LambdaUpdateWrapper<Setmeal> updateWrapper=new LambdaUpdateWrapper<>();
        updateWrapper.set(Setmeal::getStatus,state);
        updateWrapper.in(Setmeal::getId,ids);

        setmealService.update(updateWrapper);

        return R.success("套餐状态修改成功");
    }

    //修改套餐信息---回显数据,根据id查询套餐信息和对应的菜品信息
    @GetMapping("/{id}")
    public R<SetmealDto> get(@PathVariable Long id){

        SetmealDto setmealDto = setmealService.getByIdWithDish(id);
        return R.success(setmealDto);
    }

    //修改套餐
    @PutMapping
    public R<String> updata(@RequestBody SetmealDto setmealDto){

        setmealService.updateWithDish(setmealDto);
        return R.success("修改套餐成功");
    }
}
